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Natasha_Volkova [10]
3 years ago
15

I NEED HELP ON KEY CONCEPT!!

Biology
1 answer:
levacccp [35]3 years ago
8 0
Spoons are metal and to find metal bonds you need to use I microscope
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In a series of experiments, Avery treated heat-killed nonvirulent S bacteria with enzymes that degraded the proteins, DNA, and R
alexandr1967 [171]

Answer:

The answer is C. DNA from the S bacteria is necessary for bacterial transformation to occur.

Explanation:

When heat-killed nonvirulent S bacteria will be treated with enzymes that degraded DNA it will destroy the genetic information required for cell survival. DNA is very essential for an organism and is called the molecule of life. DNA degradation is also a part of cell death called apoptosis. That's why all the samples grew except the one where DNA was enzymatically degraded.

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3 years ago
Explain how urban sprawl affects wildlife, runoff, and water pollution in an urban area
Vilka [71]
Urban sprawl refers to the expansion of poorly planned, low-density, auto-dependent development, which spreads out over large amounts of land, putting long distances between homes, stores, and work and creating a high segregation between residential and commercial uses with harmful impacts on the people living in these areas and the ecosystems and wildlife that have been displaced. Although some would argue that urban sprawl has its benefits, such as creating local economic growth, urban sprawl has many negative consequences for residents and the environment, such as higher water and air pollution, increased traffic fatalities and jams, loss of agricultural capacity, increased car dependency, higher taxes, increased runoff into rivers and lakes, harmful effects on human health.

Hope this helps!
3 0
3 years ago
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You are examining a substance found at a crime scene. Using a chemical test, you are able to determine that glycogen is present
kondaur [170]

Answer:

a. The substance is from an animal source.

Explanation:

Glycogen is a carbohydrate polymer in which animals store their excess glucose as. When animals digest their ingested food, it gets broken down into GLUCOSE. This glucose, when in excess, gets stored as GLYCOGEN.

According to this question, a substance found at a crime scene is being examined using chemical tests. The test revealed that glycogen is present in the substance. This can mean that the substance is from an ANIMAL source because GLYCOGEN is only present in animals.

5 0
3 years ago
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How does blood pressure change during heavy exercise?
murzikaleks [220]

Answer:

The blood pressure is increased to pump more blood to distribute more oxygen to the muscles

Explanation:

When we do activities that demand heavy exercise like running, our body needs more oxygen to carry out property the exercise.  Oxygen is transported to muscles by the circulatory system (principally blood), our heart starts to pump faster the blood ( increase the blood pressure)  to distribute the oxygen between muscles, consequently, we start to breathe faster to increase the oxygen intake.  

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3 years ago
I have taken notes on your book however I still have questions ​
Anettt [7]
i don’t get this lol but ok
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3 years ago
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